Traction-wheel.



J. PORTEOU S. TRACTION WHEEL. APPLIUATION FILED MAR. 17, 1914.

1,106,842. Patent ed Aug. 11, 1914.

WITNESSES. II%% M WQW A TTORNEY 15 of the wheel in such manner that noWheel complete.

. absences, or rnnsiio, oamronnm.

M ssia- QRAICTVIONQWHEEL.

' s ecification of Letters retent- Application filed Maren 17, 1914.Serial No. $25,234.

To all wit 0m it may concern: i Be it known that I, James Pour-Eons, a

citizeniof the United States, and a: resident ot the city of' Fresno,county of Fresno,

5 and State of California, have invented a new and useful Improvement inTraction- Wheels, of whigh the following is a specification.

My invention relates to an improvement 10 in traction wheels, and its obect is to keep the wheels having such improvement thereon from slipping,and from sinking in soft ground. Such improvement consists of plates orshoes attached to the periphery the wheel will rest on one or more ofsaid plates at all times during its revolution. Said plates areconstructed in such relationship with the adjoining plates that when thewheel in either direction will bring the next adjoining plate to theground in line with the one upon which the wheel rests, and as suchwheel revolves the plates are 25 carried on the periphery thereof thusforminga continuous track upon which such wlmel can travel.

In the drawings which accompany-this specification, Figure 1 is a sideview of the Fig. 2 is a top view of the shoe, or plate removed from thewheel. Fig. 3 is a side view of Fig. 2. Fig. 4 shows a modified form ofshoe.

In said drawings A is a wheel which can as be constructed with anordinary hub 1 and spokes 2 and having a rim which is preferablyconstructed with a plurality of transverse pivotal bearings, 4,equidistant apart,

- and an equal number of bumpers 11 between a0 such pivotal bearings.

In my construction I prefer to have such bearings opposite to, or at theend of each spoke. At the pivotal bearings I have increased thethickness of.

the rim to make such bearings more rigid.

to It is herein noted that. while the construction above-set forth is mypreference the same object can be accomplished by eliminating the rim ofthe wheel and constructing the pivotal bearings and bumpers on the 0ends of alternate spokes, and strengthening the wheel by bracing suchspokes together, or an ordinary disk may be used in lieu of a wheel withspokes.

C is a plate or shoe hereinafter described. It is constructed with abase the approximate leng h of the distance between contigusuchbearings.

the adjoining shoe to pass between them. In such construction I anyplate. 20 is resting on the ground, the movement of ous'bump'ers and ofany width desired. One

ofsuoh plates 18 pivoted to the periphery of the wlieel 'a't eachof suchpivotal bearings I to permit of a rocking motion which is limited by thebumpers on either side of such pivotal bearing. 8 is the pivoted bearingon plate 0 and 9 is the pin passing through have formed longitudinalprojections 5 at the one end and longitudinal projection 6 at the otherend. Projection 6 Will work between the projections 5. tion I haveconstructed projections 5 and 6 so they" will engage bumper 11.

adapted to slide'between projection 5 on and to allow bumper 11 bumper11 would knock on the top of base 7 is a slot in projection 5,'tlieobject'being to slidingly pivot projection 5 on one shoe to pIOJECtIOH 6on the adjoining shoe.

These shoes should be pivoted in such rela-'- s, of connected shoes cantion that the end rest on their common bumper without friction. Theslot- 7 can be made in either projections 5 or 6. This same constructioncan be applied to drums by using two disks or wheels and connecting themwith plates as described.

What I claim as my invention and upon what I desire Letters Patentis:

In a wheehthe combination of a p1urality of bumpers equidistantapart onthe periphery thereof, a plurality of plates equal.-

to the number of such bumpers'rockingly pivoted at the approximatelateral center thereof to the rim of the wheel, midway betweencontiguous Bumpers, and arranged so the adjoining ends of contiguousbumpers can rest on a common bumper, slotted extensions on the upperside of such plates at one end thereof. slidi'ngly pivoted to theadjoin= ing shoe and adapted to actuate the plate adoining the plateupon which the wheel rests.

and in the direction in which such wheel is moving. to a common rotates.i

2. In a wheel the combination of a plural ity of bumpers 11 on theperiphery thereof equi-distant apart, a plura i responding with thenumber of bumpers. each plate constructed with a base 3. the approximatelength of the periphery of the wheel between the centers of twocontiguous bumpers, on the top of said base two paralplane as such wheelsa ami Men, rate.

011 the topof said plate I.

In my construc- Proj ect-io'n 6 can be substituted by a pair ofprojections ty of plates corably'pivoted to the next. adjemmg plate, anupward extension 8 ,carrying pivotal bearings through which saidbearings the late is pivoted to the rim of the wheel mi way between saidbumpers; ellsubstantially as d'escnbed.

3. In a wheel, the combination of a plurality of bumpers equidistantapart on the penphery thereef, plates with sletted extenfiepiel a! 1111iphtent m lybe (or in cent: udh, by droning v A Wuhington; new;

515115365 ti eu'p e slde slid ingly ewe-.1 to

the ndjounng plates, and adapted to draw t the ed a'eent' end of theadjoimng plate to a common bumper as the wheel rolls over such connectedplates, whether such wheel 'is r0-. tating forward or backward, allsubstantiallyas'deseribed. 1 '5 Y JAMES. PORTEOUS.

Witnesses:

ANITA Gin, v A. M. Dlmw.

m Qommhdonet I o! igtantl,

